CVE-2025-3396

MEDIUM 4.3 ALL-YEARS

Published 2025-07-10 · Last modified 2025-07-10 · GitLab · NVD: Analyzed

An issue has been discovered in GitLab EE affecting all versions from 13.3 before 17.11.6, 18.0 before 18.0.4, and 18.1 before 18.1.2 that could have allowed authenticated project owners to bypass group-level forking restrictions by manipulating API requests.

LIMITED SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 28th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

4.3CVSS 3.1 · MEDIUM · CNA

ConfidentialityLow
IntegrityNone
AvailabilityNone

What an attacker needs

✓Access: Reachable over the network — no local access needed
⚠Privileges: Requires a low-privilege account
✓User interaction: No user interaction needed
✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot: 2026-10-26T04:59:11.116Z

Affected

Vendors Gitlab

Products Gitlab

Weakness (CWE)

CWE-863: : Incorrect Authorization

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Gitlab	Gitlab	≥ 13.3.0 and < 17.11.6
Gitlab	Gitlab	≥ 18.0.0 and < 18.0.4
Gitlab	Gitlab	≥ 18.1.0 and < 18.1.2

All CVSS metrics

MEDIUM 4.3 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
MEDIUM 4.3 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

Exploit-tagged references (not proof of a PoC)

https://hackerone.com/reports/3079956 technical-descriptionexploitpermissions-requiredPermissions RequiredCVE record · GitLab · Updated 2025-07-10T08:31:04.703Z
NVD · CVE-2025-3396 · Updated 2026-06-17T09:19:52.543

Advisories

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-20986 ADVISORYEUVD · EUVD-2025-20986

Technical & other

https://gitlab.com/gitlab-org/gitlab/-/issues/534636 issue-trackingpermissions-requiredBroken LinkCVE record · GitLab · Updated 2025-07-10T08:31:04.703Z
NVD · CVE-2025-3396 · Updated 2026-06-17T09:19:52.543

Sources: NVD · CVE.org · All sources and attribution · EPSS